dependencies {
implementation 'com.google.code.gson:gson:2.8.7'
implementation 'com.squareup.retrofit2:retrofit:2.9.0'
implementation 'com.squareup.retrofit2:converter-gson:2.9.0'
}RequestBody requestBody = new MultipartBody.Builder()
.setType(MultipartBody.FORM)
.addFormDataPart("title", "Square Logo")
.addFormDataPart("image", "logo-square.png",
RequestBody.create(MEDIA_TYPE_PNG, new File("website/static/logo-square.png")))
.build();// Trailing slash is needed
public static final String BASE_URL = "http://api.myservice.com/";
Retrofit retrofit = new Retrofit.Builder()
.baseUrl(BASE_URL)
.addConverterFactory(GsonConverterFactory.create())
.build();User user = new User(123, "John Doe");
Call<User> call = apiService.createuser(user);
call.enqueue(new Callback<User>() {
@Override
public void onResponse(Call<User> call, Response<User> response) {
}
@Override
public void onFailure(Call<User> call, Throwable t) {
}public interface MyApiEndpointInterface {
// Request method and URL specified in the annotation
@GET("users/{username}")
Call<User> getUser(@Path("username") String username);
@GET("group/{id}/users")
Call<List<User>> groupList(@Path("id") int groupId, @Query("sort") String sort);
@POST("users/new")
Call<User> createUser(@Body User user);
}@Multipart
@POST("some/endpoint")
Call<Response> uploadImage(@Part("description") String description, @Part("image") RequestBody image)